Can the D composition, mixed with the engine oil, settle on the bottom of the sump during prolonged parking of the automobile and, as a result, lose its effectiveness?
According to application instructions, after the revitalizant has been introduced, the engine has to run at idle for at least five minutes. This time is enough for the revitalizant to locate the surfaces of the friction pairs (wear out zones) and work to its full effect, irrespective of breaks in the running of a mechanism.